def actually_run_the_daemon(options):
verbose = options.verbose
chan = Channel(BUFSIZE)
string = None
(cnx, addr) = (None, None)
string = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
string.bind(('', options.port))
string.listen(1)
try:
running = True
while running:
print("\nWAITING FOR CONNECTION") # DEBUG
cnx, addr = string.accept()
try:
accept_msg = "CONNECTION FROM %s" % str(addr)
if verbose:
print(accept_msg)
print("BRANCH TO options.accessLog.log()")
sys.stdout.flush()
options.access_log.log(accept_msg)
print("BACK FROM options.access.log()")
sys.stdout.flush()
while 1:
chan.clear()
# print "BRANCH TO recvFromCnx" ; sys.stdout.flush()
msg_ndx = recv_from_cnx(cnx, chan) # may raise exception
(msg, real_ndx) = MsgImpl.read(chan, STR_OBJ_MODEL)
# print " MSG_NDX: CALCULATED %s, REAL %s" % (
# msgNdx, realNdx)
# switch on message type
if msg_ndx == 0:
print("GOT ZONE MISMATCH MSG")
print(" timestamp %s" % msg.timestamp)
print(" seqNbr %s" % msg.seq_nbr)
print(" zoneName %s" % msg.zone_name)
print(" expectedSerial %s" % msg.expected_serial)
print(" actualSerial %s" % msg.actual_serial)
text =\
"mismatch, domain %s: expected serial %s, got %s" % (
msg.zone_name, msg.expected_serial, msg.actual_serial)
options.alertz_log.log(text)
elif msg_ndx == 1:
# timestamp, seqNb
print("GOT CORRUPT LIST MSG")
print(" timestamp %s" % msg.timestamp)
print(" seqNbr %s" % msg.seq_nbr)
text = "corrupt list: %s" % (msg.seq_nbr)
options.alertz_log.log(text)
elif msg_ndx == 2:
# has one field, remarks
print("GOT SHUTDOWN MSG")
print(" remarks %s" % msg.remarks)
running = False
string.close()
# XXX STUB: log the message
text = "shutdown: %s" % (msg.remarks)
options.alertz_log.log(text)
cnx.close()
break # permit only one message/cnx
except KeyboardInterrupt as k_exc:
print("<keyboard interrupt received while connection open>")
if cnx:
cnx.close()
running = False
except KeyboardInterrupt as k_exc:
print("<keyboard interrupt received while listening>")
# listening socket will be closed
finally:
if cnx:
cnx.close()
if string:
string.close()
# COMMENTING THIS OUT PREVENTS SEGFAULT ON STOCKTON ---------
# if options.logMgr is not None:
# options.logMgr.close()
# options.logMgr = None
# END COMMENTING OUT ----------------------------------------
if options.lock_mgr is not None:
options.lock_mgr.unlock()
options.lock_mgr = None
def actually_run_the_daemon(options):
"""
All necessary resources having been obtained, actually runs the
daemon.
"""
verbose = options.verbose
chan = Channel(BUFSIZE)
skt = None
(cnx, addr) = (None, None)
skt = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
skt.bind(('', options.port))
skt.listen(1)
try:
running = True
while running:
print("\nWAITING FOR CONNECTION") # DEBUG
cnx, addr = skt.accept()
try:
accept_msg = "CONNECTION FROM %s" % str(addr)
if verbose:
print(accept_msg)
print("BRANCH TO options.accessLog.log()")
sys.stdout.flush()
options.access_log.log(accept_msg)
print("BACK FROM options.access.log()")
sys.stdout.flush()
while True:
chan.clear()
# print "BRANCH TO recvFromCnx" ; sys.stdout.flush()
msg_ndx = recv_from_cnx(cnx, chan) # may raise exception
# XXX s_obj_model (the former sOM) is UNDEFINIED here
(msg, real_ndx) = MsgImpl.read(chan, s_obj_model)
# DEBUG
print(" MSG_NDX: CALCULATED %s, REAL %s" % (
msg_ndx, real_ndx))
# END
# switch on message type
if msg_ndx == 0:
print("GOT ZONE MISMATCH MSG")
# pylint: disable=no-member
print(" timestamp %s" % msg.timestamp)
# pylint: disable=no-member
print(" seq_nbr %s" % msg.seq_nbr)
# pylint: disable=no-member
print(" zone_name %s" % msg.zone_name)
# pylint: disable=no-member
print(" expected_serial %s" % msg.expected_serial)
# pylint: disable=no-member
print(" /Serial %s" % msg.actual_serial)
# pylint: disable=no-member
text = \
"mismatch, domain %s: expected serial %s, got %s" % (
msg.zone_name, msg.expected_serial,
msg.actual_serial)
options.alertz_log.log(text)
elif msg_ndx == 1:
# timestamp, seq_nbr
print("GOT CORRUPT LIST MSG")
# pylint: disable=no-member
print(" timestamp %s" % msg.timestamp)
# pylint: disable=no-member
print(" seq_nbr %s" % msg.seq_nbr)
# pylint: disable=no-member
text = "corrupt list: %s" % (msg.seq_nbr)
options.alertz_log.log(text)
elif msg_ndx == 2:
# has one field, remarks
print("GOT SHUTDOWN MSG")
# pylint: disable=no-member
print(" remarks %s" % msg.remarks)
running = False
skt.close()
# XXX STUB: log the message
# pylint: disable=no-member
text = "shutdown: %s" % (msg.remarks)
options.alertz_log.log(text)
cnx.close()
break # permit only one message/cnx
except KeyboardInterrupt:
print("<keyboard interrupt received while connection open>")
if cnx:
cnx.close()
running = False
except KeyboardInterrupt:
print("<keyboard interrupt received while listening>")
# listening socket will be closed
finally:
if cnx:
cnx.close()
if skt:
skt.close()
def do_test_ack(self, text):
# Create a channel ------------------------------------------
# its buffer will be used for both serializing # the instance
# data and, by deserializing it, for creating a second instance.
chan = Channel(BUFSIZE)
buf = chan.buffer
self.assertEqual(BUFSIZE, len(buf))
# create the ack_msg_cls class ------------------------------
ack_spec = self.s_obj_model.msgs[0]
msg_name = ack_spec.name
self.assertEqual('ack', msg_name)
ack_msg_cls = make_msg_class(self.s_obj_model, 'ack')
# create a message instance ---------------------------------
values = [text]
ack = ack_msg_cls(values)
(_) = tuple(values) # WAS text1
# pylint: disable=no-member
self.assertEqual(ack_spec.name, ack.name)
# we don't have any nested enums or messages
# pylint: disable=no-member
self.assertEqual(0, len(ack.enums))
# pylint: disable=no-member
self.assertEqual(0, len(ack.msgs))
# pylint: disable=no-member
self.assertEqual(1, len(ack.fieldClasses))
self.assertEqual(1, len(ack)) # number of fields in instance
for ndx, value in enumerate(ack):
self.assertEqual(values[ndx], value)
# verify fields are accessible in the object ----------------
# pylint: disable=no-member
self.assertEqual(text, ack.text)
# serialize the object to the channel -----------------------
buf = chan.buffer
chan.clear()
nnn = ack.write_stand_alone(chan)
self.assertEqual(0, nnn) # returns msg index
chan.flip()
print("ACTUAL LENGTH OF SERIALIZED ACK OBJECT: %u" % chan.limit)
# deserialize the channel, making a clone of the message ----
(readback, _) = MsgImpl.read(chan, self.s_obj_model)
self.assertIsNotNone(readback)
self.assertTrue(ack.__eq__(readback))
# produce another message from the same values --------------
ack2 = ack_msg_cls(values)
chan2 = Channel(BUFSIZE)
nnn = ack2.write_stand_alone(chan2)
chan2.flip()
(copy2, nn3) = ack_msg_cls.read(chan2, self.s_obj_model)
self.assertTrue(ack.__eq__(readback))
self.assertTrue(ack2.__eq__(copy2))
self.assertEqual(nnn, nn3) # GEEP
def test_le_msg_serialization(self):
# parse the protoSpec
# XXX highly questionable:
# verify that this adds 1 (msg) + 5 (field count) to the number
# of entries in getters, putters, etc
self.assertIsNotNone(self.s_obj_model)
self.assertTrue(isinstance(self.s_obj_model, M.ProtoSpec))
self.assertEqual('org.xlattice.ringd', self.s_obj_model.name)
self.assertEqual(0, len(self.s_obj_model.enums))
self.assertEqual(11, len(self.s_obj_model.msgs))
self.assertEqual(0, len(self.s_obj_model.seqs))
# XXX a foolish test, but we use the variable 'leMsgSpec' below
le_msg_spec = self.s_obj_model.msgs[5]
msg_name = le_msg_spec.name
self.assertEqual('logEntry', msg_name)
# Create a channel ------------------------------------------
# its buffer will be used for both serializing # the instance
# data and, by deserializing it, for creating a second instance.
chan = Channel(BUFSIZE)
buf = chan.buffer
self.assertEqual(BUFSIZE, len(buf))
# create the LogEntryMsg class ------------------------------
log_entry_msg = make_msg_class(self.s_obj_model, 'logEntry')
# create a message instance ---------------------------------
values = self.le_msg_values() # a list of quasi-random values
le_msg = log_entry_msg(values)
(timestamp, key, length, node_id, src, path) = tuple(values)
# DEBUG
print("TIMESTAMP = %d" % timestamp)
print("KEY = %s" % key)
print("LENGTH = %s" % length)
# END
# pylint: disable=no-member
self.assertEqual(le_msg_spec.name, le_msg.name)
# we don't have any nested enums or messages
self.assertEqual(0, len(le_msg.enums))
self.assertEqual(0, len(le_msg.msgs))
# pylint: disable=no-member
self.assertEqual(6, len(le_msg.fieldClasses))
self.assertEqual(6, len(le_msg)) # number of fields in instance
for ndx, value in enumerate(le_msg):
self.assertEqual(value, values[ndx])
# verify fields are accessible in the object ----------------
#(timestamp, key, length, nodeID, src, path) = tuple(values)
self.assertEqual(timestamp, le_msg.timestamp)
# pylint: disable=no-member
self.assertEqual(key, le_msg.key)
# pylint: disable=no-member
self.assertEqual(length, le_msg.length)
# pylint: disable=no-member
self.assertEqual(node_id, le_msg.node_id)
# pylint: disable=no-member
self.assertEqual(src, le_msg.src)
# pylint: disable=no-member
self.assertEqual(path, le_msg.path)
# serialize the object to the channel -----------------------
buf = chan.buffer
chan.clear()
nnn = le_msg.write_stand_alone(chan)
self.assertEqual(5, nnn) # returns msg index
old_position = chan.position # TESTING flip()
chan.flip()
self.assertEqual(old_position, chan.limit) # TESTING flip()
self.assertEqual(0, chan.position) # TESTING flip()
actual = chan.limit
print("ACTUAL LENGTH OF SERIALIZED OBJECT: %u" % actual)
# deserialize the channel, making a clone of the message ----
(readback, _) = MsgImpl.read(chan, self.s_obj_model)
self.assertIsNotNone(readback)
self.assertTrue(le_msg.__eq__(readback))
# produce another message from the same values --------------
le_msg2 = log_entry_msg(values)
chan2 = Channel(BUFSIZE)
nnn = le_msg2.write_stand_alone(chan2)
chan2.flip()
(copy2, nn3) = log_entry_msg.read(chan2, self.s_obj_model)
self.assertTrue(le_msg.__eq__(readback))
self.assertTrue(le_msg2.__eq__(copy2))
self.assertEqual(nnn, nn3) # GEEP
def test_zone_mismatch_msg(self):
# DEBUG
print("\nTEST_ZONE_MISMATCH_MSG")
# END
# from setUp(): =============================================
# end stuff from setup ======================================
# -----------------------------------------------------------
# XXX This code has been crudely hacked from another test
# module, and so needs careful review
# -----------------------------------------------------------
# verify that this adds 1 (msg) + 3 (field count) to the number
# of entries in getters, putters, etc
self.assertIsNotNone(self.str_obj_model)
self.assertTrue(isinstance(self.str_obj_model, M.ProtoSpec))
self.assertEqual('org.xlattice.alertz', self.str_obj_model.name)
self.assertEqual(0, len(self.str_obj_model.enums))
self.assertEqual(16, len(self.str_obj_model.msgs))
self.assertEqual(0, len(self.str_obj_model.seqs))
msg_spec = self.str_obj_model.msgs[0]
msg_name = msg_spec.name
self.assertEqual('zoneMismatch', msg_name)
# Create a channel ------------------------------------------
# its buffer will be used for both serializing # the instance
# data and, by deserializing it, for creating a second instance.
chan = Channel(BUFSIZE)
buf = chan.buffer
self.assertEqual(BUFSIZE, len(buf))
# create the ZoneMismatchMsg class ------------------------------
zone_mismatch_msg_cls = make_msg_class(self.str_obj_model, msg_name)
# create a message instance ---------------------------------
values = self.zone_mismatch_fields() # list of quasi-random values
zmm_msg = zone_mismatch_msg_cls(values)
self.assertEqual(msg_spec.name, zmm_msg._name)
# we don't have any nested enums or messages
self.assertEqual(0, len(zmm_msg.enums))
self.assertEqual(0, len(zmm_msg.msgs))
self.assertEqual(5, len(zmm_msg.field_classes))
self.assertEqual(5, len(zmm_msg)) # number of fields in instance
self.assertEqual(values[0], zmm_msg.timestamp)
self.assertEqual(values[1], zmm_msg.seq_nbr)
self.assertEqual(values[2], zmm_msg.zone_name)
self.assertEqual(values[3], zmm_msg.expected_serial)
self.assertEqual(values[4], zmm_msg.actual_serial)
# serialize the object to the channel -----------------------
# XXX WRITE HEADER FIRST!
# DEBUG
print("DIR (ZMM_MSG): ", end=' ')
print(dir(zmm_msg))
# END
zmm_msg.write_stand_alone(chan)
chan.flip()
# deserialize the channel, making a clone of the message ----
(read_back, nn2) = MsgImpl.read(chan, self.str_obj_model)
self.assertIsNotNone(read_back)
# DEBUG
print("position after mis-match read back is %d" % chan.position)
# END
# verify that the messages are identical --------------------
self.assertTrue(zmm_msg.__eq__(read_back))
# produce another message from the same values --------------
zmm_msg2 = zone_mismatch_msg_cls(values)
chan2 = Channel(BUFSIZE)
zmm_msg2.write_stand_alone(chan2)
chan2.flip()
(copy2, nn3) = MsgImpl.read(chan2, self.str_obj_model)
self.assertTrue(zmm_msg.__eq__(copy2))
self.assertTrue(zmm_msg2.__eq__(copy2)) # GEEP
def test_shutdown_msg(self):
# DEBUG
print("\nTEST_SHUTDOWN_MSG")
# END
# -----------------------------------------------------------
# XXX This code has been crudely hacked from another test
# module, and so needs careful review
# -----------------------------------------------------------
# verify that this adds 1 (msg) + 3 (field count) to the number
# of entries in getters, writeStandAlones, etc
msg_spec = self.str_obj_model.msgs[2] # <------
msg_name = msg_spec.name
self.assertEqual('shutdown', msg_name)
# Create a channel ------------------------------------------
# its buffer will be used for both serializing # the instance
# data and, by deserializing it, for creating a second instance.
chan = Channel(BUFSIZE)
buf = chan.buffer
self.assertEqual(BUFSIZE, len(buf))
# create the CorruptListMsg class ------------------------------
shutdown_msg_cls = make_msg_class(self.str_obj_model, msg_name)
# create a message instance ---------------------------------
values = [RNG.next_file_name(8), ] # list of quasi-random values
sd_msg = shutdown_msg_cls(values)
self.assertEqual(msg_name, sd_msg._name)
# we don't have any nested enums or messages
self.assertEqual(0, len(sd_msg.enums))
self.assertEqual(0, len(sd_msg.msgs))
self.assertEqual(1, len(sd_msg.field_classes)) # <---
self.assertEqual(1, len(sd_msg)) # number of fields in instance
self.assertEqual(values[0], sd_msg.remarks)
# serialize the object to the channel -----------------------
sd_msg.write_stand_alone(chan)
chan.flip()
# deserialize the channel, making a clone of the message ----
(read_back, nn5) = MsgImpl.read(chan, self.str_obj_model)
self.assertIsNotNone(read_back)
# DEBUG
print("position after shutdown read back is %d" % chan.position)
# END
# verify that the messages are identical --------------------
self.assertTrue(sd_msg.__eq__(read_back))
# produce another message from the same values --------------
sd_msg2 = shutdown_msg_cls(values)
chan2 = Channel(BUFSIZE)
sd_msg2.write_stand_alone(chan2)
chan2.flip()
(copy2, nn6) = MsgImpl.read(chan2, self.str_obj_model)
self.assertTrue(sd_msg.__eq__(copy2))
self.assertTrue(sd_msg2.__eq__(copy2)) # GEEP GEEP GEEP
def test_the_daemon(self):
chan = Channel(BUFSIZE)
chan.clear() # XXX should be guaranteed on new channel
msg_count = 8 + RNG.next_int16(25) # so 8..32
# DEBUG
print("MSG_COUNT = %u" % msg_count)
# END
# set up options ----------------------------------
now = int(time.time())
pgm_name_and_version = "testWithDummyClient v%s %s" % (
__version__, __version_date__)
with open('/etc/hostname', 'r') as file:
this_host = file.read().strip()
options = {} # a namespace, so to speak
options['ec2Host'] = False
options['justShow'] = False
options['log_dir'] = 'logs'
options['pgm_name_and_version'] = pgm_name_and_version
options['port'] = 55555
options['showTimestamp'] = False
options['showVersion'] = False
options['testing'] = True
options['this_host'] = this_host
options['timestamp'] = now
options['verbose'] = False
ns_ = Namespace(options)
# clear the log files (so delete any files under logs/) -----
self.do_clear_logs(ns_)
# start the daemon --------------------------------
daemon_t = threading.Thread(target=run_the_daemon, args=(ns_,))
daemon_t.start()
# give the daemon time to wake up --------------------------
time.sleep(0.15) # XXX without this we get an abort saying
# that libev cannot allocate (2G - 16)B
# start sending (some fixed number of ) messages ------------
msgs_sent = []
for nnn in range(msg_count):
msg = self.next_zone_mismatch_msg()
seq_nbr_field = msg[1]
# XXX by name would be better!
self.assertEqual(nnn, seq_nbr_field.value)
# serialize msg into the channel
chan.clear()
msg.write_stand_alone(chan)
chan.flip()
# send the msg to the daemon ------------------
skt = send_to_end_point(chan, '127.0.0.1', 55555)
time.sleep(0.05)
skt.close()
msgs_sent.append(msg)
# DEBUG
print("MSG %d HAS BEEN SENT" % nnn)
# END
self.assertEqual(msg_count, len(msgs_sent))
# delay a few ms --------------------------------------------
time.sleep(0.05)
# build and send shutdown msg -------------------------------
msg = self.next_shutdown_msg()
chan.clear()
msg.write_stand_alone(chan)
chan.flip()
skt = send_to_end_point(chan, '127.0.0.1', 55555)
# DEBUG
print("SHUTDOWN MSG HAS BEEN SENT")
# END
# delay a few ms --------------------------------------------
time.sleep(0.05)
skt.close()
# join the daemon thread ------------------------------------
time.sleep(0.05)
daemon_t.join()
